Graziadio & C. S.p.A., in 60 years of activity, has realized busbars for large plants applied in the Oil & Gas field, maturing a wide experience through the collaborations with the main national and international General Contractors.
The busbar range of Graziadio: ISOLSBARRA low voltage – from 630 to 6300 A – and GMT busduct medium voltage – from 7,2 to 24 kV – produced in according to all specific requirements.

Our strenghts:

  • Extensive experience gained through collaborations with major General Contractors
  • Employees dedicated to projects
  • Quick answers
  • Assistance and support for the resolution of any kind of problem
  • Telephone and written reports in English, French, Italian and Spanish
  • Plans according to customer requirements
  • Customization of our busbars (colour, lengths, labels, special elements)
  • Adaptation of the connections on the switchboards and transformers selected by the customer
  • Documentation customized to the client’s requirements
  • Seaworthy packaging manufactured according to the specifications provided
  • Structural calculations of support structures
  • Kick-off meeting at our premises or that of the customer
  • Surveys and inspections
  • Training with translations into local languages
  • Installation/ commissioning / supervision if required

For each project Graziadio provides in the busbar equipment any document required to satisfy the customer’s Supply Specifications

The documentation:

  • 3D busbar drawings and design specific to the plant
  • Detailed drawings useful for installation
  • Type tests and material certificates
  • Painting procedures: thicknesses and colours of the paint according to requests
  • Installation, operation and maintenance manual translated into local language if necessary
  • FAT (Factory Acceptance Tests) and ITP (Inspection and Test Plan) drawn up in agreement with the customer
  • Namplates with custom materials, sizes and directions
  • Detailed packing lists adapted to the indicated formats
  • Spare parts list and special tools list based on our experience gained over the years
  • Instructions for on-site storage of crates and SAT procedure (performed by us if required)
  • Data sheets, vendor data list, sub-vendor list, bill of materials, FAT report, final quality dossier and final vendor data book

The nowadays energy scenario

Oil and natural gas dominate the world energy market nowadays, and so it is expected to continue the trend in the coming years. Since the last five years, oil has accounted for 33% of the world’s energy consumption, followed by natural gas with 24%. Renewable energy, on the other hand, meets only 2% of demand.

Oil remains the most used resource as it is the cheapest and most efficient energy source for primary uses in today’s societies: such as heating and transport.

These resources require large infrastructure for extraction, further processing and transport to the end user.

Every year, international oil companies invest more and more in the exploration of new deposits and extraction.

Countries with the largest oil reserves:


Saudi Arabia


The world’s largest consumers of oil:

United States



Countries with the biggest natural gas reserves:




The world’s largest consumers of natural gas:

United States



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